<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<body>

<script type="text/javascript">
	
let a = "\u0061";
console.error("a = " + a);

let b = "\uD842\uDFB7";
console.error("b = " + b);

let c = "\u20BB7";
console.error("c = " + c);

let d = "\u{20BB7}";
console.error("d = " + d);

</script>

</body>
</html>